body,p,h1,h2,h3,h4,ul{
    margin: 0;
}
ul{
    padding: 0;
    list-style: none;
}
input,button{
    outline: none;
}
img{
    border: none;
    vertical-align: middle;
}
a{
    text-decoration: none;
}
.fl{
    float: left;
}
.fr{
    float: right;
}
.clearfix:after{
    content: "";
    display: block;
    clear: both;
}